Evaluation method and correction method of rock abrasiveness parameters in conglomerate formation

An abrasive and parametric technology, applied in the field of geological exploration, achieves the effect of simple calculation, strong promotion, and low learning cost

Active Publication Date: 2022-02-25
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology

At present, with the development of conglomerate reservoirs, especially the strong heterogeneity of deep conglomerate formations will cause the drill bit to be impacted by severe and irregular loads, and the abrasiveness of conglomerate with different gravel volume content, particle size and composition will be different. Larger, the commonly used CAI evaluation method and equivalent quartz content method are difficult to apply in conglomerate formations, but rock abrasiveness is an important factor affecting drill bit wear, which is of great significance for bit selection, drilling parameter selection, and reducing drilling costs

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  • Evaluation method and correction method of rock abrasiveness parameters in conglomerate formation
  • Evaluation method and correction method of rock abrasiveness parameters in conglomerate formation
  • Evaluation method and correction method of rock abrasiveness parameters in conglomerate formation

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[0038] The specific implementation manners of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation manners described here are only used to illustrate and explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention.

[0039] figure 1 It is a schematic flowchart of a method for evaluating abrasiveness parameters of conglomerate formation rocks according to the present invention. Calculate the abrasive parameters of the rock sample according to the logging data of the rock sample; the logging data includes density logging data, resistivity logging data, neutron porosity logging data, natural gamma ray logging data and Sonic logging data. Such as figure 1 As shown, the evaluation method of the rock abrasiveness parameter of the conglomerate formation of the embodiment of the present invention m...

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Abstract

An evaluation method and a correction method for rock abrasiveness parameters in conglomerate formations. The evaluation method of the rock abrasiveness parameter includes: calculating the abrasiveness parameter of the rock sample according to the logging data of the rock sample; the logging data includes density logging data, resistivity logging data, neutron pore Degree logging data, natural gamma ray logging data and acoustic logging data. The present invention utilizes density logging data, resistivity logging data, neutron porosity logging data, acoustic logging data and natural gamma logging data to directly evaluate rock abrasiveness parameters of conglomerate formations, which is easy to calculate and low in cost. It is of great significance for the selection of drill bits in conglomerate formations, high-efficiency rock-breaking drilling, and cost reduction and efficiency enhancement of drilling engineering.

Description

technical field [0001] The invention relates to the field of geological exploration, in particular to an evaluation method and a correction method of rock abrasiveness parameters in conglomerate formations. Background technique [0002] During the drilling process, the drill bits are dulled by the wear and tear of the rock and need to be replaced after a period of use. The abrasiveness parameter of the rock is an important parameter to quantitatively reflect the ability of the rock to wear the cutting teeth of the drill bit. At present, with the development of conglomerate reservoirs, especially the strong heterogeneity of deep conglomerate formations will cause the drill bit to be impacted by severe and irregular loads, and the abrasiveness of conglomerate with different gravel volume content, particle size and composition will be different. Larger, the commonly used CAI evaluation method and equivalent quartz content method are difficult to apply in conglomerate formation...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V11/00G01V13/00
CPCG01V11/00G01V13/00
Inventor 李军张辉路宗羽王新锐吴虎
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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